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Subject[PATCH 31/52] CRED: Give the rename() inode op a credentials pointer
Date
Give the rename() inode op a credentials pointer.

Signed-off-by: David Howells <dhowells@redhat.com>
---

fs/afs/dir.c | 6 ++++--
fs/bad_inode.c | 3 ++-
fs/ext3/namei.c | 4 ++--
fs/libfs.c | 5 ++---
fs/namei.c | 8 ++++++--
fs/nfs/dir.c | 6 +++---
fs/vfat/namei.c | 3 ++-
include/linux/fs.h | 6 ++++--
mm/shmem.c | 5 +++--
9 files changed, 28 insertions(+), 18 deletions(-)

diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index 9f2c214..5f4ac2e 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -41,7 +41,8 @@ static int afs_link(struct dentry *from, struct inode *dir,
static int afs_symlink(struct inode *dir, struct dentry *dentry,
const char *content);
static int afs_rename(struct inode *old_dir, struct dentry *old_dentry,
- struct inode *new_dir, struct dentry *new_dentry);
+ struct inode *new_dir, struct dentry *new_dentry,
+ struct cred *cred);

const struct file_operations afs_dir_file_operations = {
.open = afs_dir_open,
@@ -1103,7 +1104,8 @@ error:
* rename a file in an AFS filesystem and/or move it between directories
*/
static int afs_rename(struct inode *old_dir, struct dentry *old_dentry,
- struct inode *new_dir, struct dentry *new_dentry)
+ struct inode *new_dir, struct dentry *new_dentry,
+ struct cred *cred)
{
struct afs_vnode *orig_dvnode, *new_dvnode, *vnode;
struct key *key;
diff --git a/fs/bad_inode.c b/fs/bad_inode.c
index 79d8856..2511f29 100644
--- a/fs/bad_inode.c
+++ b/fs/bad_inode.c
@@ -234,7 +234,8 @@ static int bad_inode_mknod (struct inode *dir, struct dentry *dentry,
}

static int bad_inode_rename (struct inode *old_dir, struct dentry *old_dentry,
- struct inode *new_dir, struct dentry *new_dentry)
+ struct inode *new_dir, struct dentry *new_dentry,
+ struct cred *cred)
{
return -EIO;
}
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index b54b60a..d682786 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -2299,9 +2299,9 @@ retry:
* higher-level routines.
*/
static int ext3_rename (struct inode * old_dir, struct dentry *old_dentry,
- struct inode * new_dir,struct dentry *new_dentry)
+ struct inode * new_dir, struct dentry *new_dentry,
+ struct cred *cred)
{
- struct cred *cred = current->cred;
handle_t *handle;
struct inode * old_inode, * new_inode;
struct buffer_head * old_bh, * new_bh, * dir_bh;
diff --git a/fs/libfs.c b/fs/libfs.c
index f237ef3..6b41090 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -8,7 +8,6 @@
#include <linux/mount.h>
#include <linux/vfs.h>
#include <linux/mutex.h>
-#include <linux/sched.h>

#include <asm/uaccess.h>

@@ -306,9 +305,9 @@ int simple_rmdir(struct inode *dir, struct dentry *dentry, struct cred *cred)
}

int simple_rename(struct inode *old_dir, struct dentry *old_dentry,
- struct inode *new_dir, struct dentry *new_dentry)
+ struct inode *new_dir, struct dentry *new_dentry,
+ struct cred *cred)
{
- struct cred *cred = current->cred;
struct inode *inode = old_dentry->d_inode;
int they_are_dirs = S_ISDIR(old_dentry->d_inode->i_mode);

diff --git a/fs/namei.c b/fs/namei.c
index b991b32..4af97fd 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2433,6 +2433,7 @@ asmlinkage long sys_link(const char __user *oldname, const char __user *newname)
static int vfs_rename_dir(struct inode *old_dir, struct dentry *old_dentry,
struct inode *new_dir, struct dentry *new_dentry)
{
+ struct cred *cred = current->cred;
int error = 0;
struct inode *target;

@@ -2458,7 +2459,8 @@ static int vfs_rename_dir(struct inode *old_dir, struct dentry *old_dentry,
if (d_mountpoint(old_dentry)||d_mountpoint(new_dentry))
error = -EBUSY;
else
- error = old_dir->i_op->rename(old_dir, old_dentry, new_dir, new_dentry);
+ error = old_dir->i_op->rename(old_dir, old_dentry,
+ new_dir, new_dentry, cred);
if (target) {
if (!error)
target->i_flags |= S_DEAD;
@@ -2476,6 +2478,7 @@ static int vfs_rename_dir(struct inode *old_dir, struct dentry *old_dentry,
static int vfs_rename_other(struct inode *old_dir, struct dentry *old_dentry,
struct inode *new_dir, struct dentry *new_dentry)
{
+ struct cred *cred = current->cred;
struct inode *target;
int error;

@@ -2490,7 +2493,8 @@ static int vfs_rename_other(struct inode *old_dir, struct dentry *old_dentry,
if (d_mountpoint(old_dentry)||d_mountpoint(new_dentry))
error = -EBUSY;
else
- error = old_dir->i_op->rename(old_dir, old_dentry, new_dir, new_dentry);
+ error = old_dir->i_op->rename(old_dir, old_dentry,
+ new_dir, new_dentry, cred);
if (!error) {
if (!(old_dir->i_sb->s_type->fs_flags & FS_RENAME_DOES_D_MOVE))
d_move(old_dentry, new_dentry);
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 447a364..18cea2c 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -55,7 +55,7 @@ static int nfs_link(struct dentry *, struct inode *, struct dentry *,
static int nfs_mknod(struct inode *, struct dentry *, int, dev_t,
struct cred *);
static int nfs_rename(struct inode *, struct dentry *,
- struct inode *, struct dentry *);
+ struct inode *, struct dentry *, struct cred *);
static int nfs_fsync_dir(struct file *, struct dentry *, int);
static loff_t nfs_llseek_dir(struct file *, loff_t, int);

@@ -1654,9 +1654,9 @@ nfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry,
* the rename.
*/
static int nfs_rename(struct inode *old_dir, struct dentry *old_dentry,
- struct inode *new_dir, struct dentry *new_dentry)
+ struct inode *new_dir, struct dentry *new_dentry,
+ struct cred *acred)
{
- struct cred *acred = current->cred;
struct inode *old_inode = old_dentry->d_inode;
struct inode *new_inode = new_dentry->d_inode;
struct dentry *dentry = NULL, *rehash = NULL;
diff --git a/fs/vfat/namei.c b/fs/vfat/namei.c
index f4bab9d..0502bb3 100644
--- a/fs/vfat/namei.c
+++ b/fs/vfat/namei.c
@@ -868,7 +868,8 @@ out:
}

static int vfat_rename(struct inode *old_dir, struct dentry *old_dentry,
- struct inode *new_dir, struct dentry *new_dentry)
+ struct inode *new_dir, struct dentry *new_dentry,
+ struct cred *cred)
{
struct buffer_head *dotdot_bh;
struct msdos_dir_entry *dotdot_de;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index f7838e9..7fe8921 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1146,7 +1146,8 @@ struct inode_operations {
int (*rmdir) (struct inode *,struct dentry *, struct cred *);
int (*mknod) (struct inode *,struct dentry *,int,dev_t, struct cred *);
int (*rename) (struct inode *, struct dentry *,
- struct inode *, struct dentry *);
+ struct inode *, struct dentry *,
+ struct cred *);
int (*readlink) (struct dentry *, char __user *,int);
void * (*follow_link) (struct dentry *, struct nameidata *);
void (*put_link) (struct dentry *, struct nameidata *, void *);
@@ -1799,7 +1800,8 @@ extern int simple_link(struct dentry *, struct inode *, struct dentry *,
struct cred *);
extern int simple_unlink(struct inode *, struct dentry *, struct cred *);
extern int simple_rmdir(struct inode *, struct dentry *, struct cred *);
-extern int simple_rename(struct inode *, struct dentry *, struct inode *, struct dentry *);
+extern int simple_rename(struct inode *, struct dentry *,
+ struct inode *, struct dentry *, struct cred *);
extern int simple_sync_file(struct file *, struct dentry *, int);
extern int simple_empty(struct dentry *);
extern int simple_readpage(struct file *file, struct page *page);
diff --git a/mm/shmem.c b/mm/shmem.c
index d0e2db8..9d2ebe2 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1828,9 +1828,10 @@ static int shmem_rmdir(struct inode *dir, struct dentry *dentry,
* it exists so that the VFS layer correctly free's it when it
* gets overwritten.
*/
-static int shmem_rename(struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry)
+static int shmem_rename(struct inode *old_dir, struct dentry *old_dentry,
+ struct inode *new_dir, struct dentry *new_dentry,
+ struct cred *cred)
{
- struct cred *cred = current->cred;
struct inode *inode = old_dentry->d_inode;
int they_are_dirs = S_ISDIR(inode->i_mode);

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